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  1. /*
  2.  * RAW demuxers
  3.  * Copyright (C) 2007  Aurelien Jacobs <aurel@gnuage.org>
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. #ifndef AVFORMAT_RAWDEC_H
  23. #define AVFORMAT_RAWDEC_H
  24.  
  25. #include "avformat.h"
  26. #include "libavutil/log.h"
  27. #include "libavutil/opt.h"
  28.  
  29. typedef struct FFRawVideoDemuxerContext {
  30.     const AVClass *class;     /**< Class for private options. */
  31.     char *video_size;         /**< String describing video size, set by a private option. */
  32.     char *pixel_format;       /**< Set by a private option. */
  33.     AVRational framerate;     /**< AVRational describing framerate, set by a private option. */
  34. } FFRawVideoDemuxerContext;
  35.  
  36. extern const AVOption ff_rawvideo_options[];
  37.  
  38. int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt);
  39.  
  40. int ff_raw_audio_read_header(AVFormatContext *s);
  41.  
  42. int ff_raw_video_read_header(AVFormatContext *s);
  43.  
  44. int ff_raw_data_read_header(AVFormatContext *s);
  45.  
  46. #define FF_RAWVIDEO_DEMUXER_CLASS(name)\
  47. static const AVClass name ## _demuxer_class = {\
  48.     .class_name = #name " demuxer",\
  49.     .item_name  = av_default_item_name,\
  50.     .option     = ff_rawvideo_options,\
  51.     .version    = LIBAVUTIL_VERSION_INT,\
  52. };
  53.  
  54. #define FF_DEF_RAWVIDEO_DEMUXER2(shortname, longname, probe, ext, id, flag)\
  55. FF_RAWVIDEO_DEMUXER_CLASS(shortname)\
  56. AVInputFormat ff_ ## shortname ## _demuxer = {\
  57.     .name           = #shortname,\
  58.     .long_name      = NULL_IF_CONFIG_SMALL(longname),\
  59.     .read_probe     = probe,\
  60.     .read_header    = ff_raw_video_read_header,\
  61.     .read_packet    = ff_raw_read_partial_packet,\
  62.     .extensions     = ext,\
  63.     .flags          = flag,\
  64.     .raw_codec_id   = id,\
  65.     .priv_data_size = sizeof(FFRawVideoDemuxerContext),\
  66.     .priv_class     = &shortname ## _demuxer_class,\
  67. };
  68.  
  69. #define FF_DEF_RAWVIDEO_DEMUXER(shortname, longname, probe, ext, id)\
  70. FF_DEF_RAWVIDEO_DEMUXER2(shortname, longname, probe, ext, id, AVFMT_GENERIC_INDEX)
  71.  
  72. #define FF_RAWSUB_DEMUXER_CLASS(name)\
  73. static const AVClass name ## _demuxer_class = {\
  74.     .class_name = #name " demuxer",\
  75.     .item_name  = av_default_item_name,\
  76.     .option     = NULL,\
  77.     .version    = LIBAVUTIL_VERSION_INT,\
  78. };
  79.  
  80. #define FF_DEF_RAWSUB_DEMUXER(shortname, longname, probe, ext, id, flag)\
  81. FF_RAWVIDEO_DEMUXER_CLASS(shortname)\
  82. AVInputFormat ff_ ## shortname ## _demuxer = {\
  83.     .name           = #shortname,\
  84.     .long_name      = NULL_IF_CONFIG_SMALL(longname),\
  85.     .read_probe     = probe,\
  86.     .read_header    = ff_raw_data_read_header,\
  87.     .read_packet    = ff_raw_read_partial_packet,\
  88.     .extensions     = ext,\
  89.     .flags          = flag,\
  90.     .raw_codec_id   = id,\
  91.     .priv_data_size = 0,\
  92.     .priv_class     = &shortname ## _demuxer_class,\
  93. };
  94.  
  95. #endif /* AVFORMAT_RAWDEC_H */
  96.